First thing you will want to do is make sure there are no conflicting schedules involving the same Z-Wave devices.
Also, make sure the Z-Wave device can be controlled via remote command through ADC and locally via the panel.
If you find there are no conflicting schedules, you will want to delete the schedule, wait 5 minutes, recreate the schedule, wait an additional 5 minutes, then test for resolution.
If using Sunrise/Sunset as a timeframe, it may take 24 hours for the schedule to be followed correctly.
Also, if you have recently removed any Z-Wave devices, or added any Z-Wave devices, without running a Z-Wave Network Rediscovery, this can impact command pathways negatively.
More on Z-Wave network setup/best practices, can be found here.